Laserfiche WebLink
Effective April 28, 2015 Chapter Four Subsurface Sewage Treatment System Regulations <br />Design Flow <br />Transportation Unit (gallons/day/unit) <br />Gas Station/Convenience Store <br />Customer <br />3.5 <br />Service Station* <br />Customer <br />11 <br />Service Bay <br />50 <br />Toilet <br />250 <br />Square Foot <br />0.25 <br />Car wash*(does not include car <br />wash water) <br />Square Foot <br />5 <br />Airport, Bus Station, Rail Depot <br />Passenger <br />5 <br />Square Foot <br />5 <br />Restroom <br />565 <br />Institutional <br />Unit <br />Design Flow <br />( allons/da /unit) <br />Hospital* <br />Bed <br />220 <br />Mental Health Hospital* <br />Bed <br />147 <br />Prison or Jail <br />Inmate <br />140 <br />Nursing Home, other adult <br />congregate living <br />Resident <br />125 <br />Other Public Institution <br />Person <br />105 <br />School (no gym, no cafeteria, and no <br />showers) <br />Student <br />14 <br />School (with cafeteria, no gym, and <br />no showers) <br />Student <br />18 <br />School (with cafeteria, gym, and <br />showers) <br />Student <br />27.5 <br />School (boarding) <br />Student <br />95 <br />Church <br />Seat <br />4 <br />Add for each meal prepared <br />5 <br />Assembly Hall <br />Seat <br />4 <br />Miscellaneous <br />Public Lavatory <br />Use <br />Design Flow <br />( allons/da /unit) <br />5 <br />Public Shower <br />Shower Taken <br />11 <br />* Waste other than sewage is only allowed to be discharged into the system if the waste is suitable to be discharged <br />to groundwater. <br />12.8 Employees in Design Flow Calculation. <br />Unless otherwise noted in Table II, the flow values do not include flows generated by employees. A flow value of <br />15 gallons per employee per eight hour shift must be added to the flow amount for determining the design flow for <br />other establishments. Design flow determination for establishments not listed in Table II shall be determined by the <br />available information and approved by the Department. <br />12.9 Measured Flow <br />The measured flow of sewage for existing Other establishments may be used to modify estimated flow values <br />determined in this part if the length and frequency of the measured flow accurately represents the annual average <br />water use, along with the peak weekly and daily water use. <br />46 Washington County Development Code <br />